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Study on Capsule Endoscopic Robot Technologies inside Gastrointestinal Tract

Research Project

Project/Area Number 19H02110
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 20020:Robotics and intelligent system-related
Research InstitutionToyohashi University of Technology

Principal Investigator

Mashimo Tomoaki  豊橋技術科学大学, 工学(系)研究科(研究院), 准教授 (20600654)

Co-Investigator(Kenkyū-buntansha) 岡田 浩  豊橋技術科学大学, 工学(系)研究科(研究院), 教授 (30324495)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2021: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2019: ¥8,320,000 (Direct Cost: ¥6,400,000、Indirect Cost: ¥1,920,000)
Keywordsアクチュエータ / マイクロモータ / マイクロロボット / 超音波モータ / 圧電アクチュエータ
Outline of Research at the Start

申請者が開発してきたマイクロ超音波モータは約1mmのサイズで10μNmのトルクを出せるものである.効率化・高出力化を研究し,マイクロギアを取り付けることで約100倍の高トルク化に取り組む.提案するモータとギアを用いれば,数ミリでも実用的な力を有するマイクロハンドやレッグを開発することが可能である.ハンドやレッグを構成するマイクロ部品の加工や設計手法を明らかにし,機構の動力学を解析と実験でモデリングして制御手法を構築する.さらに,ドライバ回路を窒化物半導体技術によって小型化し,カプセルに収まるサイズのモータ駆動システムを開発し,医療用カプセルロボットとしての実現可能性を明らかにする.

Outline of Final Research Achievements

With the thickness-shear effect of piezoelectric elements, the micro ultrasonic motor succeeded in improving its torque to over 40 micro-Nm and an efficiency to over 2%. Furthermore, the motor with a 2 mm-cubic stator generated a torque of 0.15 mNm. The micro wheeled mobile robot driven by the micro ultrasonic motor and micro gears demonstrated the movement on the vertical and inverted surfaces by employing appropriate adhesives. The feedback system incorporating a tiny angle sensor enabled the control of the micro ultrasonic motor. As another application example, a two-link mechanism, in which the length of link is approximately 5 mm, is controlled by a visual feedback system using a high-speed camera. Experiments on semiconductor integration technologies showed a possibility that miniaturizes the motor driver circuits into a few millimeter scale.

Academic Significance and Societal Importance of the Research Achievements

マイクロ超音波モータの解析,設計,試作を行い,トルクおよび効率の向上に成功したことで,マイクロモータの設計論をより深く理解するために重要な知見が得られた.さらに,このモータとマイクロギヤを用いたマイクロロボットの実施例を示したことは,今後のマイクロロボット研究の参考になるものであり重要な学術的意義がある.マイクロ超音波モータやマイクロギヤは世界最小級の大きさであり,いかに小さくできるかという科学的興味を満足するだけでなく,広い範囲での社会応用が見込まれる.医工学の他にも,レスキュー工学,生体模倣工学,農業工学などでの応用が期待され,その社会的意義は大きい.

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (28 results)

All 2022 2021 2020 2019

All Journal Article (10 results) (of which Peer Reviewed: 10 results,  Open Access: 4 results) Presentation (18 results) (of which Int'l Joint Research: 10 results)

  • [Journal Article] Lift Generation by a Miniature Piezoelectric Ultrasonic Motor-Driven Rotary-Wing for Pico Air Vehicles2022

    • Author(s)
      Chiang Eric Tan Kai、Urakubo Takateru、Mashimo Tomoaki
    • Journal Title

      IEEE Access

      Volume: 10 Pages: 13210-13218

    • DOI

      10.1109/access.2022.3146866

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Performance improvement of micro-ultrasonic motors using the thickness shear mode piezoelectric elements2022

    • Author(s)
      Mashimo Tomoaki、Oba Yoshinari
    • Journal Title

      Sensors and Actuators A: Physical

      Volume: 335 Pages: 113347-113347

    • DOI

      10.1016/j.sna.2021.113347

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Millimeter-Scale Rolling Microrobot Driven by a Micro-Geared Ultrasonic Motor2021

    • Author(s)
      Hutama Rudolf Yoga、Khalil Mohamed M.、Mashimo Tomoaki
    • Journal Title

      IEEE Robotics and Automation Letters

      Volume: 6 Issue: 4 Pages: 8158-8164

    • DOI

      10.1109/lra.2021.3104227

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Comparison study of bending and three-wave vibration modes for micro ultrasonic motors2021

    • Author(s)
      Chiang Eric Tan Kai、Mashimo Tomoaki
    • Journal Title

      Sensors and Actuators A: Physical

      Volume: 329 Pages: 112801-112801

    • DOI

      10.1016/j.sna.2021.112801

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Design and characterization of a thin linear ultrasonic motor for miniature focus systems2021

    • Author(s)
      Izuhara Shunsuke、Mashimo Tomoaki
    • Journal Title

      Sensors and Actuators A: Physical

      Volume: 329 Pages: 112797-112797

    • DOI

      10.1016/j.sna.2021.112797

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Review: Recent Advances in Micromotors2020

    • Author(s)
      Mashimo Tomoaki、Izuhara Shunsuke
    • Journal Title

      IEEE Access

      Volume: 8 Pages: 213489-213501

    • DOI

      10.1109/access.2020.3041457

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Characterization of bulk piezoelectric element-based ultrasonic motors2020

    • Author(s)
      Izuhara Shunsuke、Mashimo Tomoaki
    • Journal Title

      ROBOMECH Journal

      Volume: 7 Issue: 1 Pages: 1-8

    • DOI

      10.1186/s40648-020-00179-w

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] High-Speed Visual Feedback Control of Miniature Rotating Mirror System Using a Micro Ultrasonic Motor2020

    • Author(s)
      Mashimo Tomoaki、Izuhara Shunsuke、Arai Shiro、Zhang Zhong、Oku Hiromasa
    • Journal Title

      IEEE Access

      Volume: 8 Pages: 38546-38553

    • DOI

      10.1109/access.2019.2957298

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Design and Experiments of Flexible Ultrasonic Motor Using a Coil Spring Slider2020

    • Author(s)
      Kanada Ayato、Mashimo Tomoaki
    • Journal Title

      IEEE/ASME Transactions on Mechatronics

      Volume: 25 Issue: 1 Pages: 468-476

    • DOI

      10.1109/tmech.2019.2959614

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Linear piezoelectric motor using a hollow rectangular stator2020

    • Author(s)
      Izuhara Shunsuke、Mashimo Tomoaki
    • Journal Title

      Sensors and Actuators A: Physical

      Volume: 309 Pages: 112002-112002

    • DOI

      10.1016/j.sna.2020.112002

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] Micro Linear Ultrasonic Motor Using a Thin Stator2021

    • Author(s)
      S. Izuhara, T. Mashimo
    • Organizer
      International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA2021), Online, 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication and Performance Improvement of Submillimeter-Scale Ultrasonic Motor2021

    • Author(s)
      K. Kikuchi, T. Mashimo
    • Organizer
      International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA2021), Online, 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Minimize Temperature Influence on Micro Ultrasonic Motors2021

    • Author(s)
      M. Khalil, T. Mashimo
    • Organizer
      International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA2021), Online, 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Experimental Characterization of Submillimeter Scale Ultrasonic Motors2020

    • Author(s)
      M. Hussain, T. Mashimo
    • Organizer
      International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Miniature Hollow Linear Ultrasonic Motor2020

    • Author(s)
      S. Izuhara, T. Mashimo
    • Organizer
      International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 小型中空リニア超音波モータの開発2020

    • Author(s)
      出原俊介,真下智昭
    • Organizer
      ロボティクス・メカトロニクス講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 視覚フィードバックを用いたマイクロ2リンクマニピュレータの開発2020

    • Author(s)
      岩間祐太,真下智昭
    • Organizer
      ロボティクス・メカトロニクス講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 小型中空リニア超音波モータの試作と評価2020

    • Author(s)
      出原俊介, 真下智昭
    • Organizer
      2020年度精密工学会秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 揺動型超音波モータの試作と評価2020

    • Author(s)
      比嘉祐一,出原俊介,真下智昭
    • Organizer
      2020年度精密工学会秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 圧電アクチュエータのスケール則に関する研究2020

    • Author(s)
      大貝篤史, 真下智昭
    • Organizer
      2020年度精密工学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Development of Micro Ultrasonic Actuator and Micro Rotor Blade for Micro Aerial Vehicle2019

    • Author(s)
      ETK. Chiang, Tomoaki Mashimo
    • Organizer
      IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Design of Flexible Ultrasonic Motor2019

    • Author(s)
      A.Kanada, T. Mashimo
    • Organizer
      International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Visual Feedback Control of Micro Ultrasonic Motor2019

    • Author(s)
      S. Izuhara, T. Mashimo
    • Organizer
      International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] マイクロ超音波モータの視覚フィードバック制御に関する研究2019

    • Author(s)
      出原俊介, 真下智昭
    • Organizer
      2019年度精密工学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Development of Movement System Using Micro Gear Robot2019

    • Author(s)
      R.Hutama, Tomoaki Mashimo
    • Organizer
      International Conference on Climbing and Walking Robots and Support Technologies for Mobile Machines (CLAWAR 2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Miniaturization of Ultrasonic Motor and Rotor Blade for Rotary-Wing Micro Aerial Vehicle2019

    • Author(s)
      ETK. Chiang, Tomoaki Mashimo
    • Organizer
      International Conference on Climbing and Walking Robots and Support Technologies for Mobile Machines (CLAWAR 2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] マイクロギヤードモータを用いた移動機構の開発2019

    • Author(s)
      ルドルフ・ヨガ フタマ, 真下智昭
    • Organizer
      ロボティクス・メカトロニクス講演会2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] マイクロ超音波モータを用いた回転翼系MAVの開発2019

    • Author(s)
      カイチアング・エリックタン, 真下智昭
    • Organizer
      ロボティクス・メカトロニクス講演会2019
    • Related Report
      2019 Annual Research Report

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Published: 2019-04-18   Modified: 2023-01-30  

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